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1. 发明授权

US3641324A Position busy signaling apparatus 失效
标题翻译：位置繁忙信号装置
公开(公告)号：US3641324A
公开(公告)日：1972-02-08
申请号：US3641324D
申请日：1969-04-21
申请人： SANDERS ASSOCIATES INC
发明人： LONGLAND JOHN R , WILLIAMS ROY M JR , SUTTON HOWARD D
IPC分类号： G09G1/10 , G09G5/20 , G06F15/20
CPC分类号： G09G1/10
摘要： The Position Busy Signaling Apparatus is an open loop position busy generator for signaling the duration or completion of a position move for an imaging device in a display system. A display surface is divided into a grid of equal distance units along X and Y axial directions. The position distance Delta L is calculated for the larger of the X and Y axial distance to be travelled. A clock source increments a counter at a rate corresponding to the travel rate of the imaging device so as to provide incremental reference distances as the imaging device traverses the position distance. A comparator compares the position distance with successive incremental reference distances. When a less than or equal comparison is obtained, a signaling circuit signals that the position move has been completed.
摘要翻译：位置占线信令装置是开环位置繁忙发生器，用于发信号通知显示系统中的成像装置的位置移动的持续时间或完成。显示面沿着X轴方向和Y轴方向被分成等距离单位的格栅。对于行驶的X和Y轴距离的较大者，计算位置距离DELTA L。时钟源以与成像装置的行进速率相对应的速率递增计数器，以便当成像装置穿过位置距离时提供增加的参考距离。比较器将位置距离与连续的增量参考距离进行比较。当获得小于或等于的比较时，信令电路发信号表示位置移动已经完成。

2. 发明授权

US3558863A Coordinate converter using multiplying digital-to-analog converters 失效
标题翻译：使用多路数字转换器的坐标转换器
公开(公告)号：US3558863A
公开(公告)日：1971-01-26
申请号：US3558863D
申请日：1969-03-27
申请人： SANDERS ASSOCIATES INC
发明人： WILLIAMS ROY M JR , LONGLAND JOHN R
IPC分类号： G01S1/02 , G01S19/19 , G06J1/00 , H03M1/00 , G06G7/22
CPC分类号： H03M1/00 , G01S1/02 , G06J1/00 , H03M1/22
摘要： A coordinate converter used in a display system for generating deflection voltages capable of rotating and/or translating one or more images on the screen of a cathode ray tube is described. More particularly, the converter uses four multiplying digital to analogue converters each of which combines one analogue voltage representing one of the initial coordinates, x or y, with one binary digital input in two''s complement form which represents either the sine or the cosine of the rotation angle. The outputs of these converters are combined to solve the coordinate rotation equations. Incremental voltages representing the desired translation may be added before and/or after the rotation computation.

3. 发明授权

US3665454A Variable rate display generator 失效
标题翻译：可变速率显示发生器
公开(公告)号：US3665454A
公开(公告)日：1972-05-23
申请号：US3665454D
申请日：1969-04-21
申请人： SANDERS ASSOCIATES INC
发明人： STODDARD ROBERT D , SCHUMACHER ARNOLD , CONLEY GRANT W , WILLIAMS ROY M JR
IPC分类号： G09G1/08 , G09G1/10 , G06F3/14
CPC分类号： G09G1/10 , G09G1/08
摘要： A computer controlled multi-station display system utilizing a single display generator unit time shared by display indicators which have different writing rates. The display generator includes a register bank which receives and holds display indicator select and writing rate information as well as symbol tracing information. A control section routes the display select information to a display selector and the writing rate and the symbol tracing information to a function generator which produces X, Y and Z axis modulating signals at a rate which corresponds to the writing rate information. The display selector routes the generated X, Y and Z signals to a display indicator having a writing rate corresponding to the rate at which the X, Y and Z signals are produced. The function generator is illustrated as including a character generator having circuitry for varying rate at which characters are written on the display surface of the indicator.

4. 发明授权

US3602768A Dual mode deflection amplifier 失效
标题翻译：双模偏移放大器
公开(公告)号：US3602768A
公开(公告)日：1971-08-31
申请号：US3602768D
申请日：1969-03-27
申请人： SANDERS ASSOCIATES INC
发明人： WILLIAMS ROY M JR , KUS CRAWFORD M
IPC分类号： H04N3/16 , G09G1/04 , G09G1/07 , H03F3/30 , H03K4/69 , H03K6/02 , H04N3/30 , H01J29/76
CPC分类号： G09G1/04 , H03F3/3079 , H03K4/693 , H03K6/02 , H04N3/30
摘要： There is disclosed a deflection amplifier for a cathode-ray ray tube which normally acts as a linear amplifier to enable operation in a random access mode. However, an input signal commanding the beam to move linearly across the screen followed by an input signal commanding a fast return, or fly back, automatically shifts operation to an energy recovery mode in which energy is transferred from the deflection coil to a capacitor and back again. During this operation, the power supply and the input stages are automatically disconnected, but are automatically reconnected as the fly back is completed.

5. 发明授权

US3517252A Linearity correction apparatus for magnetically deflected cathode ray tubes 失效
标题翻译：用于磁性偏转阴极射线管的线性校正装置
公开(公告)号：US3517252A
公开(公告)日：1970-06-23
申请号：US3517252D
申请日：1969-02-20
申请人： SANDERS ASSOCIATES INC
发明人： WILLIAMS ROY M JR
IPC分类号： H04N3/233 , H01J29/76
CPC分类号： H04N3/2335

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